EP0144795A2 - Procédé d'oscillation d'un moule horizontal de coulée continue pour métaux, en particulier l'acier - Google Patents
Procédé d'oscillation d'un moule horizontal de coulée continue pour métaux, en particulier l'acier Download PDFInfo
- Publication number
- EP0144795A2 EP0144795A2 EP84113517A EP84113517A EP0144795A2 EP 0144795 A2 EP0144795 A2 EP 0144795A2 EP 84113517 A EP84113517 A EP 84113517A EP 84113517 A EP84113517 A EP 84113517A EP 0144795 A2 EP0144795 A2 EP 0144795A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- casting
- strand
- continuous casting
- oscillation frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/053—Means for oscillating the moulds
Definitions
- the invention relates to a method for oscillating an inherently rigid horizontal continuous casting mold for metals, in particular steel, which carries out sinusoidally oscillating lifting movements in the casting direction and counter-casting direction, the strand being drawn off continuously.
- the method of the type mentioned is carried out, for example, in a horizontal continuous casting installation, which is described in DE-OS 27 37 835.
- the continuous casting mold together with the upstream storage container, is a movable, mounted unit, the casting cavity of the rigid casting mold, which is rigid in itself, having a reduction in cross-section on its pouring side.
- the known horizontal continuous caster is also equipped with an oscillation drive, via which the mold stroke between 0 to 5 mm and the mold oscillation frequency between O to 500 / min. is adjustable.
- Horizontal continuous casting molds generally have the disadvantage that the cast products produced have a lower surface quality than the products of vertical continuous casting molds. This depends, among other things. with the use of a tear-off ring arranged between the storage container and the continuous casting mold, which represents a narrowing of the casting cavity. Since the formation of the strand shell begins at the connection point between the tear-off ring and the continuous casting mold, when it oscillates in the casting direction, it has the effect of a piston which compresses the strand shell.
- furnace-independent continuous casting molds (which include the circular molds as well as the circular molds) act like a sleeve, i.e. the strand shell is only compressed until a relative movement occurs between these components after the friction between the strand shell and the continuous casting mold has been overcome.
- the points of view that must be taken into account when designing vertical or circular arc molds cannot be transferred to the conditions in horizontal continuous casting (cf. DE-OS 31 37 119).
- the invention is based on the object of specifying an oscillation method for an oscillating horizontal continuous casting mold which operates in the case of continuous extrusion movement and which, with justifiable technical outlay, enables the production of a cast product with improved quality.
- the strand to be produced should not have a flaky surface or deep imperfections, which may require pretreatment of the strand surface before further processing.
- the process is primarily intended to enable the processing of steel; however, it can easily be used in the manufacture of strands from other metals.
- the method according to the invention then leaves the path which experts have taken for a long time to work with an intermittent strand withdrawal movement despite the increased economic and technical effort involved.
- Strands allows, and that at a possibly considerable distance of the puller from the horizontal continuous casting mold.
- the method of the second-mentioned publication works without recoil of the strand in the direction of the horizontal continuous casting mold; however, it is associated with considerable additional effort in that, in addition, for example by moving the horizontal continuous casting mold, shock-like impulses are transmitted to the strand in the casting direction. If the known method works with superimposition of the strand pulling and impulse movement, the horizontal continuous casting mold no longer has any lead. Apart from the other differences, the information about the path to be taken when generating the impulse does not indicate that compliance with a compression path is of the order of magnitude at most a few tenths of a millimeter is important. After all, no suggestion can be taken from the prior art to go back to the method according to the invention with an oscillating horizontal continuous casting mold and a continuous strand withdrawal movement, deviating from the development direction chosen in solving the task.
- the method according to the invention assumes that a good strand surface can only be achieved if the speed of the horizontal continuous casting mold in the casting direction is greater than the casting speed (corresponding to the strand withdrawal speed).
- This requirement can be taken into account in that, by mutually coordinating the three variable variables - mold oscillation frequency, mold stroke and casting speed - a minimum value of 2 / ⁇ for the average advance of the continuous casting mold with respect to the strand is maintained, corresponding to approximately 0.64.
- the three sizes mentioned are chosen so that the compression path, i.e. the distance covered during the advance of the continuous casting mold with respect to the strand in the casting direction is at most 1 mm, preferably even only 0.1 to 0.5 mm.
- the process is otherwise carried out so that the mold oscillation frequency has a minimum value of about 100 / min. not less.
- the strand-shell growth element formed during an oscillation process has only a low degree of solidification and, consequently, has no deep defect after being detached from the tear-off ring.
- a minimum oscillation frequency of 120 / min is preferred. used (claim 2).
- the mold stroke carried out during an oscillation process should be at most 6 mm, preferably at most 5 mm (claim 3).
- the method according to the invention is expediently carried out in such a way that the mold stroke is even set to only 2 to 4 mm at the minimum oscillation frequency.
- the horizontal continuous casting mold suitable for carrying out the method according to the invention consequently has an oscillation drive which can be set to the required extent with regard to the mold oscillation frequency and the mold stroke; moreover, the associated strand take-off drive must be designed in such a way that the strand take-off speed representing the casting speed can be varied within a sufficiently wide range.
- the required values for the advance and the compression path can only be maintained if the mold oscillation frequency is between 120 to 200 / min. is or more than 250 / min. is.
- the mold oscillation frequency is in the range between approximately 110 to 150 or 130 to 200 or 160 to 270 or above 320 / min. must lie.
- the exemplary embodiments show that at a given casting speed (corresponding to the strand withdrawal speed), taking into account the required magnitude of the advance and the compression path, the desired higher values of the mold oscillation frequency can be achieved when working with a relatively small mold stroke. A reduction in the mold stroke also leads to an increase in the suitable range of the mold oscillation frequency.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84113517T ATE26549T1 (de) | 1983-12-01 | 1984-11-09 | Verfahren zum oszillieren einer in sich starren horizontal stranggiesskokille fuer metalle, insbesondere stahl. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3343479 | 1983-12-01 | ||
DE3343479A DE3343479C1 (de) | 1983-12-01 | 1983-12-01 | Verfahren zum Oszillieren einer in sich starren Horizontal-Stranggiesskokille fuer Metalle,insbesondere Stahl |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0144795A2 true EP0144795A2 (fr) | 1985-06-19 |
EP0144795A3 EP0144795A3 (en) | 1985-07-10 |
EP0144795B1 EP0144795B1 (fr) | 1987-04-15 |
Family
ID=6215765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84113517A Expired EP0144795B1 (fr) | 1983-12-01 | 1984-11-09 | Procédé d'oscillation d'un moule horizontal de coulée continue pour métaux, en particulier l'acier |
Country Status (8)
Country | Link |
---|---|
US (1) | US4602671A (fr) |
EP (1) | EP0144795B1 (fr) |
JP (1) | JPS60133962A (fr) |
AT (1) | ATE26549T1 (fr) |
AU (1) | AU565781B2 (fr) |
CA (1) | CA1254714A (fr) |
DE (1) | DE3343479C1 (fr) |
ES (1) | ES537955A0 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0210944A2 (fr) * | 1985-07-27 | 1987-02-04 | MANNESMANN Aktiengesellschaft | Procédé pour la coulée continue horizontale de métaux, en particulier de l'acier |
EP0325931A1 (fr) * | 1988-01-28 | 1989-08-02 | Clecim | Procédé et dispositif pour l'oscillation d'une lingotière pour la coulée continue |
EP2905093A1 (fr) * | 2014-02-07 | 2015-08-12 | SMS Concast AG | Système de lingotière pour la coulée en continu de produits métalliques |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2663126B2 (ja) * | 1987-12-22 | 1997-10-15 | 川崎製鉄株式会社 | 双方向引抜型水平連続鋳造方法 |
DE19854329A1 (de) * | 1998-11-25 | 2000-05-31 | Schloemann Siemag Ag | Verfahren zum Oszillieren einer Stranggießkokille mittels variabler Oszillationsparameter |
FR2835208B3 (fr) * | 2002-01-28 | 2003-12-26 | Usinor | Procede de coulee continue des metaux en lingotiere oscillante |
US9247736B2 (en) | 2005-12-14 | 2016-02-02 | 3M Innovative Properties Company | Antimicrobial adhesive films |
CN103894573B (zh) * | 2014-03-20 | 2016-05-25 | 攀钢集团攀枝花钢钒有限公司 | 减少连铸机漏钢的控制方法 |
CN111644586B (zh) * | 2020-06-11 | 2021-06-29 | 中冶南方连铸技术工程有限责任公司 | 确定结晶器最优振动参数的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2222156A1 (fr) * | 1973-03-22 | 1974-10-18 | Technicon Instr | |
DE2737835A1 (de) * | 1977-08-23 | 1979-03-08 | Krupp Gmbh | Horizontal-stranggiessanlage fuer kupfer und kupferlegierungen |
DE2805277A1 (de) * | 1978-02-08 | 1979-08-09 | Kabel Metallwerke Ghh | Verfahren zum stranggiessen von metallen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57187145A (en) * | 1981-05-12 | 1982-11-17 | Kawasaki Steel Corp | Continuous casting method for ingot of superior surface characteristic |
DE3137119C2 (de) * | 1981-09-18 | 1983-07-28 | Mannesmann AG, 4000 Düsseldorf | Verfahren und Vorrichtung zum Horizontalstranggießen von Metallen, insbesondere von Stahl |
DE3148033A1 (de) * | 1981-12-04 | 1983-06-09 | Realid GmbH, 4050 Mönchengladbach | Ausziehmaschine fuer horizontale stranggiessanlage |
-
1983
- 1983-12-01 DE DE3343479A patent/DE3343479C1/de not_active Expired
-
1984
- 1984-11-09 AT AT84113517T patent/ATE26549T1/de not_active IP Right Cessation
- 1984-11-09 EP EP84113517A patent/EP0144795B1/fr not_active Expired
- 1984-11-26 ES ES537955A patent/ES537955A0/es active Granted
- 1984-11-27 AU AU35928/84A patent/AU565781B2/en not_active Ceased
- 1984-11-27 CA CA000468665A patent/CA1254714A/fr not_active Expired
- 1984-11-30 JP JP59252090A patent/JPS60133962A/ja active Granted
- 1984-12-03 US US06/677,376 patent/US4602671A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2222156A1 (fr) * | 1973-03-22 | 1974-10-18 | Technicon Instr | |
DE2737835A1 (de) * | 1977-08-23 | 1979-03-08 | Krupp Gmbh | Horizontal-stranggiessanlage fuer kupfer und kupferlegierungen |
DE2805277A1 (de) * | 1978-02-08 | 1979-08-09 | Kabel Metallwerke Ghh | Verfahren zum stranggiessen von metallen |
Non-Patent Citations (1)
Title |
---|
PATENTS ABSTRACTS OF JAPAN, Band 7, Nr. 31 (M-192)(1176) 8. Februar 1983. * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0210944A2 (fr) * | 1985-07-27 | 1987-02-04 | MANNESMANN Aktiengesellschaft | Procédé pour la coulée continue horizontale de métaux, en particulier de l'acier |
EP0210944A3 (en) * | 1985-07-27 | 1988-07-06 | Mannesmann Aktiengesellschaft | Process for the horizontal continuous casting of metals, especially steel |
EP0325931A1 (fr) * | 1988-01-28 | 1989-08-02 | Clecim | Procédé et dispositif pour l'oscillation d'une lingotière pour la coulée continue |
EP2905093A1 (fr) * | 2014-02-07 | 2015-08-12 | SMS Concast AG | Système de lingotière pour la coulée en continu de produits métalliques |
WO2015118050A1 (fr) * | 2014-02-07 | 2015-08-13 | Sms Concast Ag | Agencement de lingotière pour la coulée continue de produits métalliques |
Also Published As
Publication number | Publication date |
---|---|
JPH0558825B2 (fr) | 1993-08-27 |
ATE26549T1 (de) | 1987-05-15 |
EP0144795A3 (en) | 1985-07-10 |
JPS60133962A (ja) | 1985-07-17 |
DE3343479C1 (de) | 1984-08-23 |
ES8600095A1 (es) | 1985-10-01 |
AU565781B2 (en) | 1987-09-24 |
ES537955A0 (es) | 1985-10-01 |
AU3592884A (en) | 1985-06-06 |
US4602671A (en) | 1986-07-29 |
EP0144795B1 (fr) | 1987-04-15 |
CA1254714A (fr) | 1989-05-30 |
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